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In-Rail-Mini Modbus

for installation of small Modbus applications with In-Rail Bus System

Cost-effective and fast solution for small In-Rail-Bus installations.

The In-Rail-Mini Modbus is used to put the supply voltage 24 V DC into the In-Rail-Bus connectors and to connect the Modbus lines A and B. Line E is available for group messages, e.g. for a group error message. DIP switches can be used to connect the usual terminating and polarization resistors for RS 485 interfaces.

The In-Rail-Minis are available for DIN rail heights of 7.5 mm and 15 mm (see order information).

Product line

Product line In-Rail-Mini Modbus
Accessories Order No.
In-Rail-Mini Modbus for DIN rail 35 x 7.5 mm DZU 1461
In-Rail-Mini Modbus for DIN rail 35 x 15 mm DZU 1462

Technical Data

General Data

Supply voltage 24 V DC (working range 16.8 V … 32 V DC)
Input current ≤ 1 A (Fuse recommendation 1.25 AT)
Modules amount Max. 7 DRAGO Modbus Modules DMB series
Network Modbus Terminating and polarisation resistors can be switched on via DIP switch
Group message E Group message, Pull-up resistor can be switched on via DIP switch
Connection (captive clamp screws) 0.08 ... 1.5 mm² / AWG 28 ... 18 with ferrule
Stripped length: 7 mm / 0.3 in
Screw terminal torque: 0.22 ... 0.25 Nm / 0.15 ... 2.2 lbf in
Dimensions DZU 1461: 35 x 7.5 mm DIN rail
DZU 1462: 35 x 15 mm DIN rail
Full length 75 mm, available module space 50 mm

 

Connections

Terminal assignments

  • 1 A - Modbus A
  • 2 B - Modbus B
  • 3 C - GND
  • 4 E - Group message
  • 5 − C - GND
  • 6 + D - Power supply 24 V DC

DIP Switch

  • S1−1 120 Ohm Termination
  • S1−2 Pull-Up A Polarisation
  • S1−3 Pull-Up B Polarisation
  • S1−4 Group message 4,7 kOhm Pull-Up

Observe the installation position of the modules!
Do not snap the modules upside down.

Subject to change!

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Product request

Please add 3 and 7.